JP2887008B2 - Mobile filter for dust collection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting movable filter formed in an endless belt shape.

[0002]

2. Description of the Related Art Conventionally, in a spinning factory and a spinning machine installed therein, a movable filter of a ventilation or dust-collecting type in the form of a sheet or a band is used for collecting dust such as floating cotton dust. It is built in a factory or machine.

[0003] As a conventional general movable filter, a belt material is laminated on both sides of a woven mesh of 40 to 70 mesh to improve the tensile strength performance, and further, the net has a buckling resistant performance. In order to provide, the belt material on both sides is connected by a belt material of the same material with a width of about 20 mm every 300 to 500 mm, but there is a problem that it has to be expensive due to many manufacturing steps. Also, due to the limitation of the net strength at the time of lamination, a net with a fine density of 70 mesh or more cannot be used. Therefore, when collecting dust such as cotton dust, it is possible to prevent a certain amount of dust from passing through. There was also a problem that there was no. Further, when the amount of the attached cotton dust increases, there is a possibility that the cotton dust may peel off and drop during the circulating movement.

[0004]

Accordingly, the present invention has no problems as described above, has a good dust collecting effect, can hold the attached cotton dust, and does not have a possibility of peeling during circulation movement. It is an object of the present invention to provide a mobile filter for dust.

[0005]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and its structure is made of a resin sheet or a metal sheet having good tensile strength, buckling resistance and self-swelling properties. the sheet having a pore size 3φ below, by forming the short fibers by flocking the fibers in the sheet full surface is performed with a drilling or more opening ratio of 40%, on the tip of each hole surrounding the respective holes The piles intersecting with each other support the cotton dust to be sucked.

That is, according to the present invention, a metal sheet such as a polyester resin sheet or a stainless steel sheet having good tensile strength, buckling resistance and self-lubricating property is provided with a hole having a diameter of 3φ or less and a porosity of 40% or more. By piercing by punching, etc., the fibers are planted on the sheet surface to form a circulating filter, which simplifies the structure compared to conventional filters with a structure in which a mesh and a belt material are laminated, and withstands tension. It is an object of the present invention to provide a circulating transfer type filter which is comparable in quality, buckling resistance and self-lubrication to conventional filters in terms of quality. As described above, the filter of the present invention has perforated holes on the sheet surface according to predetermined requirements, and fibers are planted on the surface, so that it is possible to suppress the passage of cotton dust through the holes without increasing filtration resistance and to capture the dust. Efficiency can be improved.
Further, in the curved portion passing when the filter is circulated, the interval between the planted and upstanding fiber piles is enlarged to easily remove cotton dust adhered and held on the planted fiber by suction, spraying, vibration or the like. Therefore, clogging does not occur. The filter formed of a conventional nonwoven fabric or a felt material has a good catching rate of cotton dust, but has a drawback that the passage resistance (blowing resistance) is large and the filter is clogged in a short period of time.

[0007] The above-mentioned flocking can be carried out by statically flocking a fiber pile of 1 to 20 denier and a length of about 2 to 4 mm, or by laminating a pile fabric having a similar density. I can do it. In this way, most of the dust is trapped on the filter and almost no dust passes. Incidentally, by appropriately adjusting the fineness, the pile length, and the density, it is possible to adjust the passage resistance and the trapping rate of cotton dust.

When a wide filter is formed, the sheet is subjected to a dent process of about 30 mm in width and about 5 to 10 mm in depth to prevent buckling due to insufficient strength of the sheet material. By forming the sheet with the attached sheet, it is possible to prevent the filter from buckling due to its own weight or suction pressure.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a partially enlarged front view of a sheet having a large number of holes used in the filter of the present invention, and FIG. 2 shows a flocking state of a hole portion of an example of the filter of the present invention formed by flocking the sheet shown in FIG. FIG. 3 is a side view showing the same, and FIG. 4 is a side view showing a state where a filter shown in FIG. 2 is used in a circulating-movement type dust collecting apparatus and is on a curved portion.
7 is a perspective view of an example in which ribs are provided, FIG. 6 is a side view thereof, and FIG.
FIG. 2 is a perspective view of an example of a dust collecting device using the filter of the present invention.

FIG. 1 shows a perforated sheet A which is a constituent member of the filter of the present invention, 1 is a polyester resin sheet,
2 is a 2φ having a large number (opening ratio of 40% or more) provided in the sheet 1.
Hole. 2 and 3, reference numeral 3 denotes a fiber pile formed by planting fibers having a length of 2 to 4 mm on the surface of the sheet 1, and constitutes the filter B of the present invention. In the fiber pile 3 of the filter B, the crossed portion surrounding the hole 2 becomes the support portion 4 of the sucked dust. Also, when the fiber pile 3 is circulated and moved, as shown in FIG. The support section 4 of the fiber pile 3 is opened to become a pile gap opening section 5, and the removal of attached cotton dust is facilitated.

In FIGS. 5 and 6, reference numeral 6 denotes a sheet having a width of about 30 mm and a depth of 5-1 to increase the buckling resistance of the sheet 1.
The rib 6 is formed by a recess process of about 0 mm, and this rib 6 is effective when forming a wide filter. As described above, it is possible to prevent the filter B from buckling due to its own weight or suction pressure. .

FIG. 7 shows a dust collector using the filter B of the present invention. In the figure, 7 is a cross-flow fan, 8 is a rotating shaft thereof, 9 is a case of the fan 7, and 10 is an endless belt. The filter is a support roll that supports the filter B and guides the filter in the direction of the thick arrow. The filter circulates in the longitudinal direction of the rotation shaft 8 of the fan 7. B
When the air is driven to circulate, air is sucked from the opening side of the case 9 and the cotton dust floating and existing outside the filter B is sucked through the filter B and adheres and accumulates on the filter B, thereby forming a curved portion, The portion of the support roll 10 is removed by suction or spraying. The movement of the filter B may be either continuous movement or intermittent movement.

When the filter B of the present invention configured as described above is used as a filter of a dust collecting apparatus shown in FIG. 7, the fiber pile 3 forms the supporting portion 4 for the dust, resulting in the removal of the dust. The trapping and holding force is remarkably improved, so that the fiber pile 3 does not fall off during the circulating movement. Also, if the curved portion is involved, the support portion 4 of the fiber pile 3 becomes a pile gap opening portion 5 to suck and spray. It is possible to easily remove the attached cotton dust.

[0014]

The present invention is as described above, and a filter is formed on a resin sheet or a metal sheet having good tensile strength, buckling resistance and self-lubricating properties by using a filter having a pore diameter of 3φ or less and a porosity of 40%.
% Or more, and the fibers are planted with fibers on the surface of the sheet, so that the dust collecting ability is improved as compared with a filter made of a conventional mesh material or the like, and the holes are planted on the sheet. By doing so, it is possible to suppress the passage of cotton dust through the holes without significantly increasing the filtration resistance of the fiber pile, thereby significantly improving the trapping efficiency. In addition, the structure as a whole can be made simple and inexpensive and can be provided at low cost, and it is significantly more economical than conventional products.

[Brief description of the drawings]

FIG. 1 is a partially enlarged front view of a sheet having a large number of holes used in a filter of the present invention.

FIG. 2 is a partially enlarged front view showing a flocking state of a hole portion of an example of the filter of the present invention formed by flocking the sheet shown in FIG. 1;

FIG. 3 is a side sectional view of the filter shown in FIG. 2;

FIG. 4 is a side cross-sectional view showing a state where the filter shown in FIG. 2 is applied to a curved portion when used in a circulating-moving dust collector.

FIG. 5 is a perspective view of an example in which ribs are provided.

FIG. 6 is a side sectional view of the same.

FIG. 7 is a perspective view of an example of a dust collector using the filter of the present invention.

[Explanation of symbols]

 A Perforated sheet B Filter 1 Polyester resin sheet 2 Hole 3 Fiber pile 4 Cotton dust support part by fiber pile 5 Pile gap opening part 6 Rib

Continuation of the front page (56) References JP-A-1-245820 (JP, A) JP-A-1-97136 (JP, U) JP-A-53-19187 (JP, U) JP-A-50-28377 (JP , U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B01D 46/00-46/52 B01D 39/16-39/20

Claims (2)

(57) [Claims] 1. A resin sheet or a metal sheet having good tensile strength, buckling resistance and self-swelling property is subjected to a punching process with a hole diameter of 3φ or less and a porosity of 40% or more, and a fiber is formed on the entire surface of the sheet. By forming a fiber pile by flocking, the pile that surrounds each hole and whose tip crosses over each hole is made to support sucked cotton dust, Mobile filter. 2. The dust-collecting movable filter according to claim 1, wherein a protruding rib is formed on the sheet surface.